VirtualEarth has no zoom 0 that I can find. In investigating this, I learned th…

…at we never care about the fact that certain tilesets can have a min or max zoom.  This is being set so we eventually fix this

@@ -56,6 +56,11 @@
 	return quadKey;
 }
 
+-(float) minZoom
+{
+   return 1;
+}
+
 -(NSString*) urlForQuadKey: (NSString*) quadKey 
 {
 	NSString *mapType = @"r"; //type road

@@ -25,7 +25,7 @@
     
     [window addSubview:[rootViewController view]];
     [window makeKeyAndVisible];
-	
+	[[NSURLCache sharedURLCache] removeAllCachedResponses];
 	[self performSelector:@selector(performTest) withObject:nil afterDelay:1.0]; 
 }